Spool type vacuum pumps are used in vacuum coating, vacuum heat treatment, vacuum sintering, molecular distillation, and aviation simulation experiments.

The screw vacuum pump is an oil-free dry vacuum pump and can be used as a substitute for rotary vane vacuum pumps and slide valve vacuum pumps.

The pump consists of two figure "8" shaped rotors and two semicircular pump houses. The rotors rotate synchronously in opposite directions and high speeding.

Roots Pump Sysems With Screw Vacuum Pumps

Better performance: Zero flow compression ratio, High vacuum limit, High reliability.

Roots pump systems with rotary piston pumps have features of obvious effect of saving energy, high vacuum and high pumping speed in high vacuum. It is widely used for transformer and electrical wire of electric utility industry, vacuum soaking and vacuum drying of capacitor.

Reciprocating Vacuum Pump also known as piston vacuum pumps, is one of the low vacuum equipment.

The vacuum system is suitable for high vacuum distilling, vacuum vaporizing and vacuum dehydrating-crystal of chemical and medicine industry, vacuum drying and vacuum soaking of electric utility and light textile industry, freeze-dryer of food industry etc.